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发表时间：2009-12-22
客户有一个需求,发布了一个Web Services,其中一个Function,输入的请求参数是Soap协议的XML文件,通过请求后.会输出一个XML格式的文件. 涉及的技术有Freemaker. 基本的思路是:通过一个连接请求,发送soap方式的XML请求文档,然后通过读取流的方式,返回结果.
private String serviceAddress = "http://localhost:8080/axis/services/Corticon";
private URL webServiceUrl;
@PostConstruct
private void init() {
try {
webServiceUrl = new URL(serviceAddress);
} catch (MalformedURLException e) {
e.printStackTrace();
}
}
public String processRequest(DialogDecisionInput input) {
try {
cfg.setClassForTemplateLoading(this.getClass(), "/");
cfg.setObjectWrapper(new DefaultObjectWrapper());
cfg.setNumberFormat("################");
// Get and config the connection.
HttpURLConnection conn;
conn = (HttpURLConnection) webServiceUrl.openConnection();
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setRequestMethod("POST");
conn.setUseCaches(false);
conn.setRequestProperty("Content-Type", "text/xml; charset=utf-8");
conn.setRequestProperty("SOAPAction", "Corticon");
Map root = new HashMap();
root.put("model", input);
Template template = cfg.getTemplate("soapRequest.ftl");
OutputStream os = conn.getOutputStream();
Writer out = new BufferedWriter(new OutputStreamWriter(os, "utf-8"));
template.process(root, out);
out.flush();
out.close();
// Get the soap response.
InputStream is = conn.getInputStream();
String rc = IOUtils.toString(is);
return rc;
} catch (TemplateException e) {
StringWriter sw = new StringWriter();
e.printStackTrace(new PrintWriter(sw));
corticonlogger.error("[E00004]" + E00004 + "\n" + sw);
} catch (IOException e1) {
StringWriter sw = new StringWriter();
e1.printStackTrace(new PrintWriter(sw));
corticonlogger.error("[E00003]" + E00003 + "\n" + sw);
}
return null;
}
呵呵,因为Freemarker的process默认是要写到一个文件当中.增加了IO的操作,比较慢,所以我的另外一篇文章也写了: Freemarker输出字符串而不是文件或者参考如下的代码:
private String serviceAddress = "http://localhost:8080/axis/services/Corticon";
private URL webServiceUrl;
@PostConstruct
private void init() {
try {
webServiceUrl = new URL(serviceAddress);
} catch (MalformedURLException e) {
e.printStackTrace();
}
}
public DialogDecisionService() {
// Get and config the connection.
cfg.setClassForTemplateLoading(this.getClass(), "/");
cfg.setObjectWrapper(new DefaultObjectWrapper());
cfg.setNumberFormat("################");
cfg.setCacheStorage(new freemarker.cache.MruCacheStorage(20, 250));
}
public String processRequest(DialogDecisionInput input) {
try {
HttpURLConnection conn;
conn = (HttpURLConnection) webServiceUrl.openConnection();
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setRequestMethod("POST");
conn.setUseCaches(false);
conn.setRequestProperty("Content-Type", "text/xml; charset=utf-8");
conn.setRequestProperty("SOAPAction", "Corticon");
Map root = new HashMap();
root.put("model", input);
Template template = cfg.getTemplate("soapRequest.ftl");
/**
* StringWriter instead of Writer
* Class StringWriter contains a StringBuffer which can be rendered toString
* modify by heweiya
*/
OutputStream os = conn.getOutputStream();
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(os, "utf-8"));
template.setEncoding("UTF-8");
cfg.setDefaultEncoding("UTF-8");
template.process(root, writer);
writer.flush();
writer.close();
// Get the soap response.
InputStream is = conn.getInputStream();
String rc = IOUtils.toString(is);
return rc;
} catch (TemplateException e) {
StringWriter sw = new StringWriter();
e.printStackTrace(new PrintWriter(sw));
corticonlogger.error("[E00004]" + E00004 + "\n" + sw);
} catch (IOException e1) {
StringWriter sw = new StringWriter();
e1.printStackTrace(new PrintWriter(sw));
corticonlogger.error("[E00003]" + E00003 + "\n" + sw);
}
corticonlogger.error("[E00004]" + E00004 + "\n");
return null;
}
发送的XML文件格式如下: <?xml version="1.0" encoding="UTF-8"?>
<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<SOAP-ENV:Body>
<CorticonRequest xmlns="urn:Corticon" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" decisionServiceName="diabetes">
<WorkDocuments>
<D_diabetes id="D_diabetes_id_1">
<currentPage>p_medInfo</currentPage>
<dialogId>3</dialogId>
<dialogInstanceId>771</dialogInstanceId>
<displayTitle>Pediatric Diabetes Screening Tool</displayTitle>
<function>screen</function>
<lastQuestionAnswered>q_sex</lastQuestionAnswered>
<locale />
<noOfChangedFlags>0</noOfChangedFlags>
<productLine>Loan</productLine>
<refId>D-00012</refId>
<region>region 1</region>
<sessionId xsi:nil="1" />
<version>1</version>
<p_medInfo id="P_medInfo_id_1">
<displayTitle>Diabetes Screening - Info</displayTitle>
<helpText></helpText>
<pageId>7</pageId>
<refId>D-00012</refId>
<version>1</version>
<q_sex id="Q_sex_id_1">
<displayFlag>true</displayFlag>
<helpText></helpText>
<questionId>41</questionId>
<questionText>Sex</questionText>
<refId>D-00012</refId>
<responseType>Custom</responseType>
<uiControl>Radio Button</uiControl>
<sequence>1.2</sequence>
<version>1</version>
<pageQuestionId>44</pageQuestionId>
<response id="R_sex_id_13" Type="R_sex">
<responseId>74</responseId>
<respEnabled xsi:nil="1" />
<respLabel>Female</respLabel>
<respSelected>false</respSelected>
<respSeq>3</respSeq>
<respValue>F</respValue>
</response>
<response id="R_sex_id_22" Type="R_sex">
<responseId>73</responseId>
<respEnabled xsi:nil="1" />
<respLabel>Male</respLabel>
<respSelected>true</respSelected>
<respSeq>2</respSeq>
<respValue>M</respValue>
</response>
</q_sex>
<q_medIntro id="Q_medIntro_id_7">
<displayFlag>true</displayFlag>
<helpText></helpText>
<questionId>39</questionId>
<questionText>We are asking a few extra questions in order to assess special risks in our new members. I would like to get some additional information about your child. This will just take a couple of minutes.</questionText>
<refId>D-00012</refId>
<responseType>No response</responseType>
<uiControl xsi:nil="1" />
<version>1</version>
<sequence>1</sequence>
<pageQuestionId>40</pageQuestionId>
<response id="R_medIntro_id_101" Type="R_medIntro">
<respEnabled xsi:nil="1" />
<respLabel xsi:nil="1" />
<respSelected xsi:nil="1" /><respValue></respValue>
</response>
</q_medIntro>
<q_age id="Q_age_id_8">
<displayFlag>true</displayFlag>
<helpText></helpText>
<questionId>40</questionId>
<questionText>Current Age</questionText>
<refId>D-00012</refId>
<responseType>Custom</responseType>
<uiControl>Text Box</uiControl>
<version>1</version>
<sequence>1.1</sequence>
<pageQuestionId>45</pageQuestionId>
<response id="R_age_id_102" Type="R_age">
<respEnabled xsi:nil="1" />
<respLabel xsi:nil="1" />
<respSelected xsi:nil="1" /><respValue>0</respValue>
</response>
</q_age>
<q_weight id="Q_weight_id_9">
<displayFlag>true</displayFlag>
<helpText></helpText>
<questionId>42</questionId>
<questionText>Weight</questionText>
<refId>D-00012</refId>
<responseType>Custom</responseType>
<uiControl>Text Box</uiControl>
<version>1</version>
<sequence>1.3</sequence>
<pageQuestionId>43</pageQuestionId>
<response id="R_weight_id_103" Type="R_weight">
<respEnabled xsi:nil="1" />
<respLabel xsi:nil="1" />
<respSelected xsi:nil="1" /><respValue>0</respValue>
</response>
</q_weight>
<q_heightFeet id="Q_heightFeet_id_10">
<displayFlag>true</displayFlag>
<helpText></helpText>
<questionId>43</questionId>
<questionText>Height - Feet</questionText>
<refId>D-00012</refId>
<responseType>Custom</responseType>
<uiControl>Text Box</uiControl>
<version>1</version>
<sequence>1.4</sequence>
<pageQuestionId>42</pageQuestionId>
<response id="R_heightFeet_id_104" Type="R_heightFeet">
<respEnabled xsi:nil="1" />
<respLabel xsi:nil="1" />
<respSelected xsi:nil="1" /><respValue>0</respValue>
</response>
</q_heightFeet>
<displayFlag>true</displayFlag>
<helpText></helpText>
<questionId>44</questionId>
<questionText>Height - Inches</questionText>
<refId>D-00012</refId>
<responseType>Custom</responseType>
<uiControl>Text Box</uiControl>
<version>1</version>
<sequence>1.5</sequence>
<pageQuestionId>41</pageQuestionId>
<response id="R_heightInches_id_105" Type="R_heightInches">
<respEnabled xsi:nil="1" />
<respLabel xsi:nil="1" />
<respSelected xsi:nil="1" /><respValue>0</respValue>
</response>
</q_heightInches>
</p_medInfo>
<displayTitle></displayTitle>
<helpText></helpText>
<pageId>9</pageId>
<refId>D-00012</refId>
<version>1</version>
<q_findingsIntro id="Q_findingsIntro_id_9">
<displayFlag xsi:nil="1" />
<helpText></helpText>
<questionId>50</questionId>
<questionText>Recap:</questionText>
<refId>D-00012</refId>
<responseType>No response</responseType>
<uiControl xsi:nil="1" />
<version>1</version>
<sequence>1</sequence>
<pageQuestionId>60</pageQuestionId>
<response id="R_findingsIntro_id_103" Type="R_findingsIntro">
<respEnabled xsi:nil="1" />
<respLabel xsi:nil="1" />
<respSelected xsi:nil="1" />
<respValue></respValue>
</response>
</q_findingsIntro>
</p_findings>
</D_diabetes>
</WorkDocuments>
</CorticonRequest>
</SOAP-ENV:Body>
</SOAP-ENV:Envelope>
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